Math, asked by gsreddy0509, 9 months ago

If sinB = 1 then
3 COS B - 4 COSB

Answers

Answered by kislayreings

1

Answer:

sinB = 1

sinB = sin90

B = 90

3cosB = 3*cos90

= 3*0 = 0

4cosB = 0

so 3 cosB - 4cosB = 0

Step-by-step explanation:

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